In a blog posting on Tuesday, Microsoft blogger Brandon LeBlanc posted a video comparing Internet Explorer 9 and Safari 5. "Apple announced and released Safari 5. We figured we would show IE9 and Safari 5 together", said LeBlanc. A video shows the two browsers running demos from Microsoft's Internet Explorer 9 test drive website.

The first demo used is the flying images JavaScript demo. Internet Explorer 9 manages around 50fps with Safari 5 struggling at 9fps. The second and final demo is the Flickr Explorer test. Internet Explorer 9 hovers around the 20fps mark whilst Safari 5 stays around 7fps throughout the test. Microsoft is currently developing Internet Explorer 9 internally and has issued preview builds for developers. LeBlanc also revealed that Microsoft has seen over a million downloads for the Internet Explorer 9 developer preview so far.